Convert acre to square meter
1 ac = 4,046.856422 m²
1 ac = 4,050 m²
1 ac in every area unit
| square millimeter | 4,050,000,000 mm² |
| square centimeter | 40,500,000 cm² |
| square meter | 4,050 m² |
| hectare | 0.405 ha |
| square kilometer | 0.00405 km² |
| square inch | 6,270,000 in² |
| square foot | 43,600 ft² |
| square yard | 4,840 yd² |
| acre | 1 ac |
| square mile | 0.00156 mi² |
How the conversion works
Multiply by 4,046.856422 to go from acre to square meter, or divide by it to go back. Every conversion on this site routes through the SI value (m²) rather than a table of pairwise factors, so a round-trip returns exactly what you started with.
Going the other way? square meter to acre — 1 m² = 0.0002471053815 ac.
acre to square meter — common values
| 1 ac | 4,046.8564 m² |
| 2 ac | 8,093.7128 m² |
| 3 ac | 12,140.569 m² |
| 5 ac | 20,234.282 m² |
| 10 ac | 40,468.564 m² |
| 15 ac | 60,702.846 m² |
| 20 ac | 80,937.128 m² |
| 25 ac | 101,171.41 m² |
| 50 ac | 202,342.82 m² |
| 75 ac | 303,514.23 m² |
| 100 ac | 404,685.64 m² |
| 250 ac | 1,011,714.1 m² |
| 500 ac | 2,023,428.2 m² |
| 1000 ac | 4,046,856.4 m² |
Solvers that use area